Release 5 Draft Ballot

This page is part of the FHIR Specification (v4.6.0: R5 Draft Ballot - see ballot notes). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3

4.3.16.309 Code System http://hl7.org/fhir/codesystem-hierarchy-meaning

Vocabulary Work Group Maturity Level: NNormative (from v4.0.0) Use Context: Any
This page has been approved as part of an ANSI standard. See the Conformance Package for further details.

This is a code system defined by the FHIR project.

Summary

Defining URL:http://hl7.org/fhir/codesystem-hierarchy-meaning
Version:4.6.0
Name:CodeSystemHierarchyMeaning
Title:CodeSystemHierarchyMeaning
Definition:

The meaning of the hierarchy of concepts in a code system.

Committee:Vocabulary Work Group
OID:2.16.840.1.113883.4.642.1.785 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

4.3.16.309.1 Content

This code system http://hl7.org/fhir/codesystem-hierarchy-meaning defines the following codes:

Code Display Definition
grouped-by Grouped By No particular relationship between the concepts can be assumed, except what can be determined by inspection of the definitions of the elements (possible reasons to use this: importing from a source where this is not defined, or where various parts of the hierarchy have different meanings).
is-a Is-A A hierarchy where the child concepts have an IS-A relationship with the parents - that is, all the properties of the parent are also true for its child concepts. Not that is-a is a property of the concepts, so additional subsumption relationships may be defined using properties or the [subsumes](extension-codesystem-subsumes.html) extension.
part-of Part Of Child elements list the individual parts of a composite whole (e.g. body site).
classified-with Classified With Child concepts in the hierarchy may have only one parent, and there is a presumption that the code system is a "closed world" meaning all things must be in the hierarchy. This results in concepts such as "not otherwise classified.".

 

See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

LevelA few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
DisplayThe display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code